Gastroenterologist at @HamHealthSci, Division Director at @McMasterU , Past Editor-in-Chief of #JCAG, Professor in @MacDeptMed, Full Member of @FarncombeInstit
McMaster University
Joined January 2014
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John K. Marshall MD retweeted
Join us for next session of SCOPE Rounds Gastroenterology 2026!
📌 Surgical management of IBD: What gastroenterologists should know
👨⚕️ Dr. Paulo Kotze
🗓️ September 29 at 7:00 PM ET
👉 Register now: us02web.zoom.us/webinar/regi…
John K. Marshall MD retweeted
Join us for our first fall session of SCOPE Rounds Gastroenterology 2026!
📌 Primary Biliary Cholangitis: Update on diagnosis and management
🗓️ September 15 at 7:00 PM ET
👨⚕️ Dr. Gideon Hirschfield
👉 Register now: us02web.zoom.us/webinar/regi…
John K. Marshall MD retweeted
Join Canadian community and academic gastroenterologists on Sept 18-19 in Niagara Falls for an interactive, case-based forum exploring emerging evidence, real-world challenges, and practical approaches to inflammatory bowel disease management across Canada. Learn more & register: buff.ly/HR4nnS1
John K. Marshall MD retweeted
Join us for the next session of SCOPE Rounds Gastroenterology 2026!
📌My approach to sessile serrated lesions
👨⚕️Dr. Eric Lam
🗓️ May 12 from 7:00 - 7:45 PM ET
👉Register now: us02web.zoom.us/webinar/regi…
John K. Marshall MD retweeted
Join us for the next session of SCOPE Rounds Gastroenterology 2026!
📌How I sequence therapy in IBD
👨⚕️Dr. Bruce Sands
🗓️April 28 from 7:00 - 7:45 PM ET
👉Register now: us02web.zoom.us/webinar/regi…
John K. Marshall MD retweeted
Don’t miss the next session of SCOPE Rounds Gastroenterology 2026!
📌 Celiac disease: How to find and fix
👩⚕️Dr. Jocelyn Silvester
🗓️April 14 from 7:00 - 7:45 PM ET
👉Register now: us02web.zoom.us/webinar/regi…
John K. Marshall MD retweeted
✨Now Accredited!✨
*Don’t miss the FIRST SCOPE Rounds Gastroenterology 2026 Session on “Endoscopic closure: When and how?” with Dr. Jeff Mosko!
📅 Tomorrow, Tuesday, March 10 at 7:00 PM ET
👉Register now: us02web.zoom.us/webinar/regi…
John K. Marshall MD retweeted
Glad to help lead this novel and groundbreaking Canadian🇨🇦 initiative to combat antimicrobial resistance!
healthsci.mcmaster.ca/mcmast…
John K. Marshall MD retweeted
The MC IBD full-day program returns on April 11, 2026, with expert-led seminars and interactive workshops on managing IBD and IMIDs throughout the pregnancy journey. A multidisciplinary event designed for clinicians across specialties. Learn more and register: buff.ly/YHxImCl
John K. Marshall MD retweeted
✨ Don’t miss the next accredited Scope Rounds Gastroenterology Session on “Management of GERD in 2025” with John Pandolfino! @JPandolfinoMD
🗓️Tuesday, November 18th at 7:00 PM ET
👉 Register now: us02web.zoom.us/webinar/regi…
John K. Marshall MD retweeted
@DiscoverIBD @waqqasafif @novakkerri @TBessissow @GI_JeffMD @NarulaNeeraj @RPanaccione @SeowCynthia @guthealthmd @marshllj @vipuljairath
John K. Marshall MD retweeted
There's still time to register for Crohn's and Colitis Canda's 13th annual Meeting of the Minds conference taking place on Nov 14-15! Mentoring in IBD XXVI takes place on Friday, followed by Canada Future Directions in IBD and CANIBD Annual Nurses Conference on Saturday. Learn more: buff.ly/YWMeVnM
John K. Marshall MD retweeted
Don’t miss this!! Tonight!
Join us tomorrow night for our SCOPE Rounds session with Dr.@RobertBechara !
Register here: us02web.zoom.us/webinar/regi…
John K. Marshall MD retweeted
Ultra-Processed Grains and Risk of Inflammatory Bowel Disease: Results from the Prospective Urban Rural Epidemiology (PURE) Study
Narula, et al.
📕 doi.org/10.14309/ajg.0000000…
@NarulaNeeraj @ToYourHealth101 @marshllj @PaulMoayyedi @MLongMD @JasmohanBajaj
John K. Marshall MD retweeted
Amazing faculty for Great Lakes IBD 2025! @FusionMD @CathyLuMD @MatthieuAllez @waqqasafif @guthealthmd @LauraT15519 @ScopeCanMD @IBDmedicaldoc
John K. Marshall MD retweeted
Our latest work in @IBDJournals reveals
☑️anti-TNFs heal UC in a proximal-to-distal pattern
☑️persistent proctitis at early follow-up may not indicate treatment failure if proximal healing is evident, ~60% went on to heal the rectum!
academic.oup.com/ibdjournal/…
John K. Marshall MD retweeted
Dr. Brian Feagan speaking to a packed, sold-out audience discussing the utility of Vedolizumab in 2025 and reminds us that the Placebo treated group had a higher rate of adverse events than the patients on Vedo in trials. Important to remember that active disease in patients on steroids can lead to more adverse events due chronic steroids use and unccontrolled disease activity.
Challenges the concept that vedo is not a good drug for ileal CD - it's as good as most of our other options and rate of response is about the same as many other therapies. #GreatLakesIBD @ScopeCanMD
John K. Marshall MD retweeted
This event is now SOLD OUT for hotel space. There are a few spaces left for day participation. Register now to take advantage of this option for a world class IBD educational event!
⏳ Just 6 weeks away!
Join global IBD experts at the Great Lakes IBD Forum, Sept 26–27 in Niagara-on-the-Lake 🍁
🎟️ Space is limited — book now!
🔗 scopecanada.org/event-detail…
#GreatLakesIBD2025 #Gastroenterology